Experimental Design

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What is Experimental Design?

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Experimental Design is a systematic method used to plan, conduct, and analyze experiments to test hypotheses and understand relationships between variables.

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What is a Qualitative Assessment?

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A qualitative assessment is a non-numerical evaluation that describes characteristics or qualities, such as the sweet smell of a cake.

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What is a Quantitative Assessment?

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A quantitative assessment is a numerical evaluation that measures quantities or amounts, such as the height of plants in centimeters.

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What is an Independent Variable?

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An independent variable is the factor that is changed or manipulated in an experiment to observe its effect on the dependent variable.

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What is a Dependent Variable?

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A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

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What is a Hypothesis?

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A hypothesis is a testable statement or prediction about the relationship between two or more variables.

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What is a Testable Question?

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A testable question is a question that can be answered through experimentation and observation.

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What is a Scientific Law?

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A scientific law is a statement based on repeated experimental observations that describes an aspect of the world, often expressed mathematically.

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What is a Theory in science?

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A theory is a well-substantiated explanation of an aspect of the natural world that is based on a body of evidence and can be tested.

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What should a scientist do when faced with new evidence?

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A scientist should evaluate the new evidence to determine if it necessitates a revision of the existing theory.